WebCompat Diagnosis Tooling: new prototype with DevTools sidebar panel to show compatibility issues and MDN compatibility data for CSS properties. Investigating the complexity of making a Lighthouse plugin for use in Chrome and other consumers.

https://i.imgur.com/NftU9gG.png (alt text = screenshot of webcompat diagnosis tool prototype, showing a list of web compatibility issues detected on the current website on the developer tools

The color-picker just got a bit of a re-design. Bug 1478152. Thanks Maliha Islam [:maliha] and Micah for pushing this over the edge!

Fission

Working towards enabling ESLint everywhere, Standard8 has enabled it on more directories, but disabled the failing rules. As a result, we get at least basic syntax checking and some limited rule coverage. Enabling the remaining rules will come as follow-up mentored bugs.

Performance tools

We are removing the Gecko Profiler Add-on, and integrating directly with Firefox. The code has landed in Firefox but it's not been heavily tested yet. You can try and give us feedback if you want! This will move use closer to being the default profiler in DevTools.